Results 11 to 20 of about 218 (186)
The clustering of Lyman-break galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 We calculate the statistical clustering of Lyman-break galaxies predicted in a selection of currently-fashionable structure formation scenarios. These models are all based on the cold dark matter model, but vary in the amount of dark matter, the initial perturbation spectrum, the background cosmology and in the presence or absence of a cosmological ...
COLES P. +3 more
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Lyman Break Galaxies: Are They Young Spheroids? [PDF]
The Astrophysical Journal, 2002 13 pages, 4 figures, ApJ Letters ...
MATTEUCCI, MARIA FRANCESCA, PIPINO A.
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Spitzer view of Lyman break galaxies [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractUsing a combination of deep MID-IR observations obtained by IRAC, MIPS and IRS on board Spitzer we investigate the MID-IR properties of Lyman Break Galaxies (LBGs) at z~3, establish a better understanding of their nature and attempt a complete characterisation of the population.
Magdis, G, Rigopoulou, D
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Tests of a New Solar Flare Model Against D and E Region Ionosphere Data
Space Weather, Volume 20, Issue 5, May 2022., 2022 Abstract We present results from a suite of models designed to simulate solar flare effects on the D and E region of the ionosphere. This suite includes models of the solar spectrum, the ionosphere and of HF radiowave propagation. A central component of this system is the development of photoelectron ionization enhancement factors with higher energy ...
David E. Siskind +6 more
wiley +1 more source
The structure and clustering of Lyman-break galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 The number density and clustering properties of Lyman-break galaxies (LBGs) are consistent with them being the central galaxies of the most massive dark halos present at z~3. This conclusion holds in all currently popular hierarchical models for structure formation, and is almost independent of the global cosmological parameters. We examine whether the
Mo, H. J. +2 more
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Solar Flare X‐Ray Impacts on Long Subionospheric VLF Paths
Space Weather, Volume 19, Issue 11, November 2021., 2021 Abstract Solar flares increase the electron number concentration in the daytime ionosphere, potentially affecting radiowave propagation over several frequency ranges. In this study, we use ionospheric observations to determine both peak magnitudes and time variations of solar flare X‐rays without using the direct measurement from the flare.
Samuel R. G. Belcher +6 more
wiley +1 more source
Lyman Break Galaxies and Reionization of Universe [PDF]
The Astrophysical Journal, 2003 submitted to ...
Harford, A. Gayler, Gnedin, Nickolay Y.
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DYNAMICS OF LYMAN BREAK GALAXIES AND THEIR HOST HALOS [PDF]
The Astrophysical Journal, 2009 We present deep two-dimensional spectra of 22 candidate and confirmed Lyman break galaxies (LBGs) at redshifts ...
Lowenthal, James D. +3 more
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A Lyman Break Galaxy Candidate at z ~ 9 [PDF]
The Astrophysical Journal, 2008 We report the discovery of a z~9 Lyman Break Galaxy (LBG) candidate, selected from the NICMOS Parallel Imaging Survey as a J-dropout with J110 - H160 = 1.7. Spitzer/IRAC photometry reveals that the galaxy has a blue H160 - 3.6 um color, and a spectral break between 3.6 and 4.5 um.
Henry, Alaina L. +5 more
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SUB-MM COUNTERPARTS TO LYMAN-BREAK GALAXIES [PDF]
Deep Millimeter Surveys, 2001 We summarize the main results from our SCUBA survey of Lyman-break galaxies (LBGs) at z~3. Analysis of our sample of LBGs reveals a mean flux of S850=0.6$\pm$0.2 mJy, while simple models of emission based on the UV properties predict a mean flux about twice as large.
Chapman, S. C. +3 more
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